Mitja Mori (Author), Rok Stropnik (Author), Mihael Sekavčnik (Author), Andrej Lotrič (Author)

Abstract

The purpose of this paper is to obtain relevant data on materials that are the most commonly used in fuel-cell and hydrogen technologies. The focus is on polymer-electrolyte-membrane fuel cells, solid-oxide fuel cells, polymer-electrolyte-membrane water electrolysers and alkaline water electrolysers. An innovative, methodological approach was developed for a preliminary material assessment of the four technologies. This methodological approach leads to a more rapid identification of the most influential or critical materials that substantially increase the environmental impact of fuel-cell and hydrogen technologies. The approach also assisted in amassing the life-cycle inventories-the emphasis here is on the solid-oxide fuel-cell technology because it is still in its early development stage and thus has a deficient materials- database-that were used in a life-cycle assessment for an in-depth material-criticality analysis. All the listed materials-that either are or could potentially be used in these technologies-were analysed to give important information for the fuel-cell and hydrogen industries, the recycling industry, the hydrogen economy, as well as policymakers. The main conclusion from the life-cycle assessment is that the polymer-electrolyte-membrane water electrolysers have the highest environmental impacts; lower impacts are seen in polymer-electrolyte-membrane fuel cells and solid-oxide fuel cells, while the lowest impacts are observed in alkaline water electrolysers. The results of the material assessment are presented together for all the considered materials, but also separately for each observed technology.

Keywords

kritični materiali;gorivne celice;elektrolizerji;vodikove tehnologije;kritičnost;študija življenjskih ciklov;critical materials;fuel cells;electrolysers;hydrogen technologies;criticality;life-cycle assessmenthuts;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FS - Faculty of Mechanical Engineering
UDC: 502.171:531.62(045)
COBISS: 57362179 Link will open in a new window
ISSN: 2071-1050
Views: 198
Downloads: 58
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Other data

Secondary language: Slovenian
Secondary keywords: kritični materiali;gorivne celice;elektrolizerji;vodikove tehnologije;kritičnost;študija življenjskih ciklov;
Type (COBISS): Article
Pages: str. 1-29
Volume: ǂVol. ǂ13
Issue: ǂiss. ǂ6
Chronology: Mar. 2021
DOI: 10.3390/su13063565
ID: 14570383